Journal ArticleDOI
Nitrate-induced photooxidation of trace organic chemicals in water.
TLDR
The oxidation kinetics of butyl chloride, nitrobenzene, anisole, and methylmercury in the presence of hydroxyl radical (OH) scavengers were used to determine the rate and quantum efficiency for production of OH from irradiated nitrate ions in water.Abstract:
The oxidation kinetics of butyl chloride, nitrobenzene, anisole, and methylmercury in the presence of hydroxyl radical (OH) scavengers were used to determine the rate and quantum efficiency for production of OH from irradiated nitrate ions in water. The experiments were conducted under steady-state irradiations with monochromatic radiation (313 nm) and with sunlight. The mean quantum efficiency for OH production at 313 nm rises from 0.013 +/- 0.002 at 20 /sup 0/C to 0.017 +/- 0.003 at 30 /sup 0/C in the pH range 6.2-8.2. Results of this study are used to estimate nitrate-induced photooxidation rates of trace organic chemicals under a variety of environmental conditions. 27 references, 6 figures, 2 tables.read more
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Journal ArticleDOI
Photochemical Formation of Hydroxyl Radicals from Chemical Species Dissolved in River Water
TL;DR: In this paper, the photochemical formation rates of hydroxyl radicals in 41 water samples collected from 6 rivers in Hiroshima Prefecture were determined and the sources of the radicals were discussed.
Oxidation Processes: Experimental Study and Theoretical Investigations
TL;DR: In this article, a kinetic model for the degradation of methyl tert-butyl ether (MTBE) in batch reactors applying Fenton's reagent (Fe/H2O2) and Fenton-like reagent in aqueous solutions was proposed.
Reference EntryDOI
Environmental Photochemistry in Surface Waters
TL;DR: In this article, a brief description of the important species and processes that play a role in environmental photochemistry in surface waters is provided, along with some estimates of relative importance, as well as some estimates for some of the most important species.
Journal ArticleDOI
Comparative study of different polyatomic ions of electrolytes on electricity generation and dye decolourization in photocatalytic fuel cell
Yong-Por Ong,Li-Ngee Ho,Soon-An Ong,Johar Banjuraizah,Abdul Haqi Ibrahim,Sin-Li Lee,Sin-Li Lee,Noradiba Nordin +7 more
TL;DR: In this paper, a photocatalytic fuel cell (PFC) with ZnO loaded nickel foam (ZnO/Ni) photoanode was constructed to study the influence of initial dye concentration, pH and supporting electrolytes of different polyatomic anions on the PFC performance.
Journal ArticleDOI
Effect of Nitrite and Nitrate as the Source of OH Radical in the O 3 /UV Process with or without Benzene
TL;DR: In this paper, the prediction model for the concentration variation of and along with the rate constants of all reactions during ozonation under UV radiation (/UV process) was suggested for removing an aqueous system with an OH radical scavenger such as.
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